NGC 4536

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NGC 4536
N4536s-crop.jpg
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 34m 27.129s[1]
Declination +02° 11′ 16.37″[1]
Redshift 0.006031 ± 0.000003[2]
Helio radial velocity 1808 ± 1[3] km/s
Distance 48.7 ± 0.9 Mly (14.9 ± 0.3 Mpc)[4]
Type SAB(rs)bc[5]
Apparent dimensions (V) 7′.6 × 3′.2[6]
Apparent magnitude (V) 11.1[6]
Other designations
UGC 7732,[6] PGC 41823[6]
See also: Galaxy, List of galaxies

NGC 4536 is a spiral galaxy in the constellation Virgo located about 10° south of the midpoint of the Virgo cluster. However, it is not considered a member of this cluster of galaxies. The morphological classification in the De Vaucouleurs system is SAB(rs)bc, which indicates it is a weakly barred spiral galaxy with a hint of a ring plus moderate to loosely wound arms.[5] It does not have a classical bulge around the nucleus.[7]

NGC 4536 has the optical characteristics of an HII galaxy, which means it is undergoing a strong burst of star formation.[7] This is occurring prominently in the ring that surrounds the bar and nucleus.[8] Based upon the level of X-ray emission from the core, it may have a small supermassive black hole with 104–106 times the mass of the Sun.[7]

On March 8, 1981, a type 1a supernova was discovered 51 arcseconds to the northeast of the galactic center. It reached a peak visual magnitude of 12 on March 8 before steadily fading from view over the next two months. No prior supernova events have been observed in this galaxy.[5]

See also[edit]

References[edit]

  1. ^ a b Skrutskie, M. F. et al. (February 2006), "The Two Micron All Sky Survey (2MASS)", Astrophysical Journal 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708. 
  2. ^ Grogin, Norman A. et al. (December 1998), "A Complete Redshift Survey to the Zwicky Catalog Limit in a 2h × 15° Region around 3C 273", The Astrophysical Journal Supplement Series 119 (2): 277–285, arXiv:astro-ph/9807067, Bibcode:1998ApJS..119..277G, doi:10.1086/313164. 
  3. ^ Falco, Emilio E. et al. (April 1999). "The Updated Zwicky Catalog (UZC)". The Publications of the Astronomical Society of the Pacific 111 (758): 438–452. arXiv:astro-ph/9904265. Bibcode:1999PASP..111..438F. doi:10.1086/316343. 
  4. ^ Jensen, Joseph B. et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430. 
  5. ^ a b c Buta, R. J.; Turner, A. (January 1983), "The photometric properties of the bright Type I supernova 1981b in NGC 4536", Publications, Astronomical Society of the Pacific 95: 72–78, Bibcode:1983PASP...95...72B, doi:10.1086/131120. 
  6. ^ a b c d "NASA/IPAC Extragalactic Database". Results for NGC 4536. Retrieved 2007-03-31. 
  7. ^ a b c McAlpine, W. et al. (February 2011), "Black Holes in Bulgeless Galaxies: An XMM-Newton Investigation of NGC 3367 and NGC 4536", The Astrophysical Journal 728 (1): 25, arXiv:1012.0834, Bibcode:2011ApJ...728...25M, doi:10.1088/0004-637X/728/1/25. 
  8. ^ Ward, Martin J. (October 1997), "Molecular hydrogen emission in NGC 4536", Monthly Notices of the Royal Astronomical Society 291 (2): 314–320, Bibcode:1997MNRAS.291..314D, doi:10.1093/mnras/291.2.314.